In a partnership with Jeff Sutton, SL Green snapped up the 65,000-square-foot retail building at 724 Fifth Ave., relying on a $120 million, five-year mortgage loan to make the purchase. The property counts Prada as its lead tenant; the Italian luxury goods retailer leases 20,700 square feet of retail space on various levels, in addition to a boutique office space.

SL Green also just claimed 402 residential units and even more retail space for $193 million through its joint-venture purchase with Stonehenge Partners. The group of assets includes the 260-unit apartment building at 400 E. 57th St., which also features 16,000 square feet of ground-level retail, and 400 E. 58th St., a 125-unit residential tower with roughly 3,300 square feet of ground-level retail space. SL Green secured seven-year mortgage financings totaling $100 million to facilitate the acquisition.

Interests in the four-story retail building at 752 Madison Avenue and 19 & 21 E. 65th St., two mixed-use properties encompassing 17 multi-family units and 9,000 square feet of retail space, were also part of the SL Green-Stonehenge joint venture deal. And two commercial properties, the 6,000-square-foot mixed-use building at 762 Madison Ave. and the five-story commercial building at 44 W. 55th St., round out the group.

SL Green’s penchant for joint venture pursuits — both acquisitions and dispositions — continues, as indicated during the REIT’s fourth-quarter earnings conference call. “On both sides of the table, we were active, we continue to be so in 2012, notably 10 East 53rd Street, which was not discussed in December, is our latest acquisition,” Marc Holliday, CEO of SL Green, said. “It fits right in with our core business line of acquiring, repositioning and redeveloping prime New York midtown Manhattan assets in prime location. And in that case, we subsequently brought in a foreign and institutional equity joint venture partner to both leverage our equity, enhance our returns and increase our opportunity set.”